Troop B organized 24 June 1916 at Milwaukee; remainder of regiment organized April–July 1917 at locations as follows- Mustered into federal service 31 July 1917; drafted on 5 August 1917. reorganized and redesignated 120th Field Artillery and assigned to the 32nd Infantry Division (United States)28 September 1917.

The 126th FA Battalion was reequipped with 105-mm howitzers during World War II and saw service in Australia, Goodenough Island, New Guinea, and the Philippines with the 32nd Division.

After riot control duty in Milwaukee in July 1967, the 1-126 FA Battalion was released from assignment to the 32nd Division in December of the same year.

[2][3][4] A Silver color metal and enamel device 1+3⁄64 inches (2.7 cm) in height overall consisting of a shield blazoned: Per pale Or and Gules, two chevronels counterchanged in dexter chief a horse's head Sable, eyed of the first within an annulet of the third.

Yellow (Or) for the Cavalry service, is impaled with the scarlet for the Regiment's conversion into Field Artillery during World War I.

Per pale Or and Gules, two chevronels counterchanged in dexter chief a horse's head erased with an annulet Sable.

That for the regiments and separate battalions of the Wisconsin Army National Guard: On a wreath of the colors Or and Gules, a badger couchant Proper.

Yellow (Or) for the Cavalry service, is impaled with the scarlet for the Regiment's conversion into Field Artillery during World War I.

The coat of arms was originally approved for the 105th Cavalry Regiment (1st Wisconsin National Guard) on 30 January 1923.